THINKCAR Bidirectional Scan Tool Thinkscan 672 - OE-Level Diagnostics

In this review the THINKCAR Thinkscan 672 is presented as a mid-priced, professional-capable OBD2 scanner best suited for independent mechanics and serious car enthusiasts who need factory-style diagnostics without workstation hardware. The single biggest reason to buy is its combination of full-system OE-level coverage and bidirectional active tests, which let a technician both read live data and command actuators directly from the unit. The review covers usability, key features, and practical limits observed when using the tool on a variety of late-model vehicles.

Key Features

• Processing and storage: A 2.0GHz Cortex-A53 quad-core CPU and 32GB of ROM keep menus responsive and store multiple vehicle reports and software modules.
• Display and battery: The 7-in 1024x600 widescreen and a 3150mAh battery allow extended diagnostic sessions with clear live-data graphs and tables.
• Connectivity: Dual-band WiFi, Bluetooth 5.0, USB 2.0 and TYPE-C charging enable fast updates, report upload and wireless operation in the shop.
• Full-system OE diagnostics: The scanner reads and clears codes across ECM, ABS, airbags, SAS, EVAP, TPMS, BMS and EPB providing comprehensive troubleshooting data.
• Bidirectional active tests: Users can command injectors, pumps, lights and other systems for on-vehicle functional checks, reducing the need for manual disassembly during diagnosis.
• 28 reset services: Dedicated service functions such as Oil Reset, DPF and IMMO Reset, SAS calibration and TPMS procedures simplify routine maintenance tasks.

Who It's For

The Thinkscan 672 is aimed at mobile technicians, independent garages and serious DIYers who need more than a basic code reader and value OE-level system access and active tests. Its factory-style coverage and multilingual UI make it practical for shops that service a mixed fleet of domestic and import vehicles.

It is less appropriate for casual owners who only need occasional code reads or a pocket-sized reader; the TK672 is heavier and more feature-rich than simple OBD2 dongles and requires some familiarity with diagnostic procedures to use bidirectional tests safely.

Pros & Cons

Pros

• Comprehensive OE-level diagnostics across major systems provide a single tool for most troubleshooting needs.
• Bidirectional active tests significantly speed root-cause verification without extra tools.
• Modern hardware and 32GB storage keep the UI responsive and allow for saving Wi-Fi diagnostic reports.
• Supports CANFD and wide protocol coverage for compatibility with newer vehicle networks.

Cons

• Some advanced features like FCA AutoAuth require a separate account and membership fee to access on certain vehicles.
• The unit is larger and more complex than entry-level readers, which may be overkill for simple code checking.

Specifications

CPU	MT8365 2.0GHz Cortex-A53 quad-core
Storage	32GB ROM
Display	7-in widescreen 1024x600
Battery	3150mAh 3.8V
Connectivity	TYPE-C, USB 2.0, dual-band WiFi, Bluetooth 5.0
Cable	1.2m detachable DB15 diagnostic cable
Reset services	28 service functions (Oil, DPF, IMMO, SAS, TPMS etc.)

Our Verdict

The Thinkscan 672 delivers factory-level diagnostics and bidirectional testing in a portable package, making it strong value for independent technicians and serious DIYers who need thorough system access and active tests. With modern connectivity, ample storage and lifetime software updates, it replaces multiple single-purpose tools, though occasional paid services for some manufacturers should be expected.

Frequently Asked Questions

Does it support newer CANFD networks?
The TK672 supports CANFD protocols alongside standard OBDII/EOBD protocols for wider compatibility with modern vehicles.

Are software updates free?
Thinkscan 672 includes free lifetime software updates to keep vehicle coverage current.

Can it perform active tests and resets?
Yes, it supports bidirectional active tests and 28 reset services such as Oil Reset, DPF, SAS and TPMS procedures.